Leaf-binder.



H. G. BUGHAN.

LEAF BINDER.

APPLICATION FILED JULY 27, 1907.

Patented Sept. 13, 1910.

WEE

HUGH SELL RU YEL/EHAA/ ieces C "aretobegeeu tective end pieces 14, usually of substantially semi-circular shape as shown in Figs. 1 and 2 have the forward ends secured in any desired manner to the outer free working ends of the segments C, and are secured to each ofsaid se' 'ents at the inner end, to the end coiled ho ow or hinged portions 11', the purpose ofsuchprotective endieces 14 being to cover'and protect the b y or bundle of leaves at the corners of the bound ends.

For convenience of descri tion that 'oneof the segments 0 shown atthe top of Figs. 1 2 and 3', will be herein designated as the top so ent and that shown at the bottom as the ttom segment.

A hollow boss 15 is secured within the top segment through which asses so "as to-rotate freely therein the ock screw bolt 16 provided with a olygonal head 17 ada ted to receive a suita le socket wrench bv w ich the same may be rotated, and interposed between the boss and the'screw bolt 16 is a vibrating bearing 18' ivoted in the boss in such manner that suc bearing and screw bolt may be vibrated at a right angle to the axis of the segment hinge 11. The-securing screw bolt 16 co-acts with a sleeve-nut 18 pivoted a boss similar to the boss 15 numbered 15, as shown in'Fig. 3 secured to 'thelower segment opposite to the boss 15 as shown at 19.

A flexible backing 20 usually formed of leather or similar material, which is tightly stretched upon the back-piece and has the forward edges thereof, firmly securedto the open clampm or working edges of' the clamp formedby the two hinged sections of the back-piece, covers the back-piece. formed by the two hinged segmental ortions (land is secured in position by a shaped securin strip of spring brass or other suitable meta 21,:which is swaged down over such' flexible backing andthe end or edge of the segment 0' in such manner asto hold such flexible position thereon. And

in order firmly to secure. the back-piece to the cover board A, the edges 21' of such flexible. backingQO' extend beyond the securing'stri' 21 as clearly shown in Fig. 2, and

y lued or otherwise secured to the cover boa A. 'And'su V upon the piece '20 is the outer flexible back covering eumd te'the-cover boards A atthe point D;

of le'athencanvas or any other suitable flexible material of sufiicient strength; if he edges of the segmental v I order to be more firmly see'u to theflexible backing 20 may be pro vided with "serrations 9A. I

, the body of theloose leavesB which red in the binder at the securing corners thereof are formed perforations as, t ough. which pass lo eg-p 25, which are of such length that the ends thereof when the se ents G are locked together b the screwlng home of the securing and coking-bolt 16, will extend behind theouter "securing-ends of such segments G bearing the-securing clips or strips 21,- as clearly shown in Fig.2, in such manner as to firmly lock the bundle or body of loose leaves B against reinbval' from the backing and binding. Sudh'ijlaf-bundle or body is provided at the center with an open end slot 27 to receive the blocking-bolt 16 and sleeve 18 as shown in Figs. 2 and 4. v

The operation of thedevice is as follows :A lurality of loose leaves B forming the b0 y or bundle to be bound is laced upon the lower cover of the binder, t etop cover having beenthrown back and the se curing screwbolt 16 having been loosened sufliciently to allow the free passa e under the clips 22 of such body or bun le when the loose securing pins 25 arein place. Such securing pins are then slipped throughthe perforations 26, and the bod or bundle of caves slid into position, when once in position the natural resiliency of the spring 12 will force the segments G into thehinding position shown in Fig. 2. If then'by the.

proper key the securing screw-bolt 16' is V screwed down tightly intothe nut-sleeve 18 such body or bundle of leaves wil in position and held therein, until such be locked time as such screw is rotated in the 1'81 verse direction" to release the binding pressure. Should'it be necessary toremov'eany of the leaves:asfor example from the central portion of the bundle ;this' can be done without disturbance. of the other leaves by loosening the bolt. 1'6 sufiiciently to permit of the separation of the front edges of the segments C so es to allow of. the draw 'ing out from underneath the .-binding edges of such segments C, of the protruding ends of the loose securing. 25; then 'by'merely withdrawing one 9 such. and tw'1st1n "the sheets to be removed sidewise,

retained, and thereafter manipulating the other pin and the sheetsdn the same manner, the bundle of sheets. to be retained may versin this action, such sheets so removed from t e or bundle may be replaced, and with or without themthe body or bu'n-* (He-returned to the-position shown. in Fig. 2,}and firmly Locked in ition by the and rensertingthe pins the sheets-to be be replaced in the body or bundle. lBy' reproper. manipulation of t-e binding. ,and I the same in position before the screwin home of the bolt 16 so as an same ' ner that'the protrudin secure such body or bundle of leaves in position, is facilitated by the fact that the torsional pivot sprin 12 of the hinge segment, causes an initial pressure" upon the leaf bundle the moment that the same is slid into position, so that the protruding end of the securing pins lie behind the clips 22 on the securing edges of the hinge segments C.

Among other advantages possessedby my invention are that one or two sheets 01 a large number or many as can be forced between the securing edges of the segmental hinged back-piece can be placed in position, and when few sheets are used, the loose-pins may be entirely omitted, or shorter ones used. In addition the roundness of the back makes the device convenient for the pocket, and desk, and where leaves are to be removed and be reinserted at frequent intervals, the securing-bolt may be left loose, and in this case and in cases where the securing-bolt is omitted, the spring hinge will by its own resiliency still keep the binding edges of the back-piece forced down upon the body or bundle of leaves in such manner as to bindand hold the same firmly in position in the cover. In like manfier the torsional spring of the hinge may be entirely omitted, and the segments, which may be of any form, forced together solely by the se curing bolt or other means performing the same function; or the spring hinge may be made of many and varied forms other than the one shown.

The securing-pin (numbered 25 in Figs. 2 and 4 and 25 in Fig. 6) may be of any desired form of construction; as shown in modification in such Fig. (i, being in the form of hollow cylinders of resilient metal, such as drawn brass, provided on one side with a longitudinal slit 30 and being made somewhat larger in diameter than the perforations in the body or bundle of paper to be bound, so that the resiliency of the spring metal will cause the same to fill the perforations tightly, the ends of such pins being rounded at theouter edges in order to facilitate entrance to the body of leaves.

What I claim is 1. In a binder, a back-piece the holding edges of which extend inward toward one another, and loose securing pins adapted to pass through the perforations in the body of leaves to be bound in such manner that the protrudin ends will lie behind the holding edges of te back-piece.

2. In a binder, a segmental back-piece the holding edges of which extend inward toward one another, and loose securing pins adapted to pass through the perforations in the body of leaves to be bound in such manends will lie behind the holding edges oft e hack-piece.

3. In a binder. a back-piece formed of two segmental shaped pieces hinged, the holding edges of which back-piece extend inward toward each other, and loose securing pins passing through the perforations in the body of leaves to be bound in such manner that the protruding ends lie behind the holding edges of the back-piece,

4. In a binder, a back-piece formed of two segmental shaped pieces hinged together by a spring hinge, the holding edges of which back-piece extend inward toward each other, and loose securing pins passing through the perforations in the body of leaves to be bound in such manner that the protruding ends lie behind the holding edges of the back-piece.

In a binder, a back-piece formed of two segmental shaped pieces hinged together by a spring hinge, the holding edges of which back-piece extend inward toward each other, loose securing pins assin through the perforations in the ho y of eaves to be bound in such manner that the protruding ends lie behind the holding edgesof the back-piece, and means for locking the parts forming the backiece together.

6. iii a binder, a resilient back-piece having co-acting binding and locking edges, means for forcing such edges toward one another to bind the loose leaves in position, and loose securing pins adapted to pass 95 through perforations in the body of leaves to be bound which when in position have the ends thereof in abutment with the bindin and locking edges of the back-piece.

In abinder, two segmental shaped back- 100 pieces secured together by c lindrical alternating hinge-joints forme integral with each of such segments, and a torsion flat spring inclosed within and extending, from end to end of the hinge-joints secured at one 5 end to one segment and at the other to the Y other segment so as to keep the open binding-edges of the back so formed normally forced toward one another.

8. In a binder, two se ental shaped back- 110 pieces secured together y cylindrical alternating hinge-joints formed integral with each of such segments, and a torsion spring inclosed within and extending from end to end of the hinge-joints and secured atone end to 15 one segment and at the other to the .other segment so as to keep the open binding-edges of the back so formed normally forced toward one another, cover-boards, a flexible backing superposed upon the back-piece, a U 120 shaped metallic clip mclosing a fold of the flexiblebackin and the ed e of the segment secured upon t e binding-e ge of each of the segments of the back- 'iece, the securing edges of the flexible-bac ing extending out- 3.2-1 ward from the securing-clip andisecured to the cover-boards, and an outer flexible-backcover secured at the forwardedges to the cover-boards superposed upon the flexiblebacking.

boards, a flexible backing so the back-piece, a U shaped c ip inclosing a,

9, In a binder, two segmental shaped back-pieces secured together by cylindrical alternating hingeq'oints formed integral with each of such segments, and a torsion spring inclosed within and extending from end to end of the hinge-joints, and secured at one end to one segment and at the other to the other segment so as to keepthe open;

bindingedges of the back so formed normally forced toward one another, coverrpo'sed upon fold of the flexible-backing and the edge of the segmentsecured 'upon the binding-edge of each of the segments of the backiece, the securing edges of the flexible-bat: ing extending outward from the securing-clip being secured to the hover-boards, an outer flexible-back-cover secured at the forward through perforations in the edges to the cover-boards superposed upon the flexible-backing, and protective end pieces for each of the segments at the end.

10. Inca binder, a back-piece formed of two segmental shaped pieces the holding edges of which extend toward one another, and loose securing pins ada ted to pass y of leaves to be bound insnch manner that the protruding ends will lie behind the holdingedges of the back-piece, and will be held in place by abutment of the ends thereof against the binding-edge of the segments of the backback-piece, and means for locking the hy'a. sprlng hinge, the holding edges at which back-piece extend inward toward each other, loose securing-pins paming through erforations in the body of leaves to be and in such manner that the protruding ends lie behind the holding edges of the ments formin thetback-piece together.

13. In a bmder, two segmental shaped back-pieces secured together by cylindrical alternating hingejoints formed integral with each of such segments, a torsion spring inclosed within and extending from end to end, of the hinge-joints, secured at one end to one segment and at the other to the other segment so as to keep the open binding-edges ot th c back so formed normally forced toward one another, and loose securing-pins held in place by abutment of the ends thereof against the binding-edges of the segments of the baCkieces. V

14. In a inder, twosegmental shaped back-pieces secured together by cylindrical alternating hinge-joints formed integral with each of such segments, a torsion spring inclosed within and extending from end to end of the hinge-joints, and secured at one endto one segment and at the other tothe other segment so as to kee the open binding-edges of the back so ormed normally forced toward one another, cover-boards, a flexible-backing su rposed upon the backiece, a U shaped c ip lnclosing a fold of the exible-backing and the edge of the seg-' ment of the back-piece, the securing edges "of the flexible-backing extending outward from the securing-clips and being secured at the forward edges to the cover-boards, and loose secur' -pins held in place by abutment of the en s thereof against the binding-edges of the segments of the bask-piece.

15. In a binder, two segmental shaped back-pieces secured together-by cylindrical alternating hinge-joints formed integral with each of such segments, a torsion spring inclosed within and extending from end to end of the hingeq'oints, and secured at one end to one segment and at the other to the other segment so as to kee the open bindingedgesof the baclt so ormed normally forced toward one another, cover-boards, a fiexihldbacking superposed upon the backiece, a U shaped clip inclosing a fold of the ilexible-backing and the edge of the segment secured upon the binding-edge of-each of the segments of the back iece, the securing edges of the flexible-bee ing extending outwgi 'd from the securing-clips and being secured tothe cover-boards, an outer flexiblethe cover-boards superposed upon'the flexibis-backing, protective end pieces for each of the segmcntsat the end, and loose securing-pins held in place by the abutment of the ends thereof against the binding-c edges of the segments of the baclriece.

16. In a loose-lead binder, a sch-piece formed of two segments hinged together, a screw loch bolt, and a co-acting nut-sleeve pivotedly secured one to one segment and oneto the other, and loose securing-pins adapted'to he held in position in the binder when assedthrough suitable perforations in the dy of leaves to be bound by abutment against the inner side of the binding-edgesof the segments 17. In a hiiider, a metallic back-piece mt segmental form, the binding-edges out which are adapted to hear upon the-hodymf leaves to he bound, a flenihlehaclting upon the hachc-piece,- and metallic securing clips swaged down upon the folds or loo ot the fleXihle-baclring made upon the hind ing-edges of the hatch-piece back-coversecured at the forward edges to ceases 18. In a binder, a metallic back-piece of segmental form comprising two segments hinged together, the binding-edges of which are adapted to bear u on the body of leaves to be bound, at flexib e-backin superposed upon the back-piece, and meta lic securingc ips swaged down upon, the folds or loops of the flexible-backing made upon the binding-edges of the back-piece.

19. In a binder, a back-piece, loose securing pins adapted to pass through perforations in a body or bundle of leaves to be bound, Ineans arried by the back-piece, engaging with tli'e ends of the loose securing pins which protruding ends will lie behind and abut against the inner side of the backpiece.

20.' In a binder, a back-piece formed of two segmental shaped ieces hinged together, and a plurality o loose hollow longitudinally slitted securin pins formed of resilient metal of the same iameter throughout adaptedito pass through perforations in the body or bundle of leaves to be bound rated e and secured at the ends by abutment against the abutting ed es of the'back-pieces.

21. In a bin er, a back-piece formed of two se ental shaped pieces hinged toether a s rin hin e, the outer or holdg y P g 1% lug ed es of which buck-piece are serrated, a flexi le backing, metallic securin clips inclosin the flexible backing and t e serges of each segmental piece of the back-piece, and loose securing pins unconnected mechanically with other arts adapted to pass through the body. of eaves to be bound in such manner that the rotruding ends of such securing pins lie Eehind the holdin serrated edges of the back-piece and are he d in place against forward movement only by such edges.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

HUGH GELLROY BUCHAN.

Witnesses:

JOHN J. CLANCY, "VM. P. lLARTIN. 

